Make tweaks to presets (including all of CodePen's themes, Monokai, and Cobalt 2) or roll your own entirely. Themes can be created with a built-in GUI or imported (and exported!) via JSON if that's more your speed.Get themin'.
Like using the code-on-top editor view? Don't like having to squish your code to test different viewport widths? Resize your Pen preview with a convenient draggable handle.
Sometime's it's just nice to have some more screen real estate y'know? Distraction free mode (available via the
change view menu) declutters the editor UI saving you dozens of precious pixels. Don't spend 'em all in one place.
Adds a small visiual indicator when new items are added to your activity feed.
Hover over a profile link for more details on that user. Works most places that profile links exist.
CodePen users can be pretty creative. Sometimes too creative. Adds a toggle to disable someone's custom CSS, just in case.